package com.sub.extend;

/**
 * @ClassName I
 * @Description: TODO
 * @Author Submerge.
 * @Since 2023/12/26 11:41
 * @Version 1.0
 */
public class I extends Father{

    public static void main(String[] args) {
        I i = new I();
        int age = i.getAge();
        System.out.println(age
        );
        GrandFather grandFather = new I();
        Father father = new Father();
        Father father1 = new I();
        I i1 = (I) new Father();

    }
}
